#3779AA#3779AA

#3779AA is a mid, moderate cyan. Relative luminance 0.174; OKLCH L 55.6% C 0.102 H 243.6°. Best body text is #FFFFFF at 4.69:1 contrast (WCAG AA passes).

Color values

HEX	#3779AA
RGB	rgb(55, 121, 170)
HSL	hsl(206, 51%, 44%)
HSV	hsv(206, 68%, 67%)
CMYK	cmyk(67.6%, 28.8%, 0%, 33.3%)
CIE-LAB	lab(48.74, -4.93, -32.27)
CIE-LCH	lch(48.74, 32.64, 261.31°)
OKLab	oklab(55.55% -0.0451 -0.091)
OKLCH	oklch(55.55% 0.102 243.6)
XYZ	xyz(15.6659, 17.3876, 40.5529)
Luminance	0.1739 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3779AA #AA6837

analogous

#37AAA2 #3779AA #3740AA

triadic

#3779AA #AA3779 #79AA37

tetradic

#3779AA #A237AA #AA6837 #40AA37

square

#3779AA #A237AA #AA6837 #40AA37

split-complementary

#3779AA #AA3740 #AAA237

monochromatic

#19374E #28587C #3779AA #5698C8 #84B4D7

Accessibility & contrast

On white

4.69

#3779AA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.48

#3779AA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3779AA

4.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3779AA	#FFFFFF	#000000	##FFFFFF
##3779AA	1.00	4.69	4.48	4.69
#FFFFFF	4.69	1.00	21.00	1.00
#000000	4.48	21.00	1.00	21.00
##FFFFFF	4.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#637AAC

Deuteranopia (green-blind)

#536FA9

Tritanopia (blue-blind)

#00858A

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3779aa;
/* rgb */ color: rgb(55, 121, 170);
/* oklch */ color: oklch(55.6% 0.102 243.6);

Tailwind

colors: {
  custom: {
    50: '#7b9fc3',
    500: '#3779aa',
    950: '#000000',
  },
}

SCSS

$custom: #3779aa;
$custom-light: #7b9fc3;
$custom-dark: #000000;

JSON

{
  "hex": "#3779aa",
  "rgb": {
    "r": 55,
    "g": 121,
    "b": 170
  },
  "hsl": {
    "h": 205.565,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.55552,
    "c": 0.10162,
    "h": 243.6
  },
  "luminance": 0.17389
}

Semantic roles & 50–950 ramp

primary

#3779AA

secondary

#C1997C

accent

#894DDB

background

#F7F9FC

surface

#EEF2F8

border

#C9CCD1

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3779AA

Body copy rendered with the generated semantic roles for this colour.

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